Tire tread and buttress



FIG. 1 is a perspective view, partly schematic of a tire tread and buttress showing my new design, it being understood that the pattern is repeated throughout the circumference of the tread and buttress as shown schematically in solid lines, the opposite side being substantially the same as that shown;

FIG. 2 is a front elevational view thereof; and

FIG. 3 is a fragmentary side elevational view thereof with a portion broken away for ease of illustration.

The broken lines in the drawing are for illustrative purposes only. 

The ornamental design for a tire tread and buttress, substantially as shown and described. 